frisbie



I W. J. FRISBIE. SPARK PRODUCING MECHANISM. APPLICATION FILED AUG.29, 1921.

1,407,143,- Patented Feb. 21, 1922.

NITED STATS PATENT. OFFICE.

WILLIAM FRISIBIE, OF CHICAGO, ILLINOIS, ASSIGNOR TO JUSTRITE MANUFAC- TUBING- COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION-OF ILLINOIS.

SPARK-PRODUCING MECHANISM.

Specification of Letters Patent.

Patented Feb. 21, 1922.

Application filed August 29, 1921. Serial No. 496,545.

T 0 all whom it may concern:

Be it known that 1, WILLIAM J. FRISBIE, a citizen of the United States, and a resident of Chicago, in the county of Cook, State of Illinois have invented certain new and useful Improvementsin Spark-Producing Mechanism, of which the following is a specification.

My invention relates to spark producing mechanism which is particularly useful as an attachment on the. reflectors of miners acetylene lamps and is of the type in which a serrated friction wheel co-operates with pyrophoric material to produce ignition sparks.

In the device of my invention a spring is connected with the friction wheel and a lever is-provided for conveniently rotating plane 5-5, Fig. 1 and Fig. 1-is a front elevational view of a miners'cap lamp with part of the reflector broken away and the sparking attachment applied thereto,-

Fig. 2'is-an enlarged-elevational view of one side of the attachment partly broken away,

Fig. 3 is a similar view of the other side of the attachment partly broken away,

. Fig. 4 is an enlarged sectional view on plane 4 4, Fig 1, r

Fig. 5 is an enlarged sectional View on Fig. 6 is an elevational view of the inside "of the wheel operating lever. The lamp to which I have shown my-attachment applied is a miners cap lamp comprising the water container A, the carbide cup B, the gas tube C, and the reflector D, i

the valve lever E controlling the flow of the water to the carbide for the generation of acetylene gas.

The sparking device comprises a frame I having the base 10 from which extendsthe threaded sleeve or barrelll for receiving the block of pyrophoric material 12 and the spring 13, the cap 1 1 having threaded engagement with the outside of the sleeve for frame 21 formed of sheet metal, this frame having the opening 22 registering with the opening 19 of the friction wheel. The openings receive the pivot pin,17, and surrounding this pin is the coiled spring 23 which has its one end 24 secured to the lever and its other end 25 anchored to the arm 15. As

shown the lever has the slot 26 therein adjacent its hub for receiving the spring end and near the end of the lever is the deflection 27 through which the spring passes, the end 24;. of the spring then extending through the opening 28 and being bent around the edge of thelever-jas clearly. shown. At its end the lever has the lateral deflection 29 forming a finger engaging tongue by means of:

between the base 10 and the nut 31 engaging the threaded sleeve. The attachment is positioned with the friction wheel in va diametral plane includingthe gas orifice of the tube C. The. arrangement of the spring is such that the lever will normally be held; outwardly with its end against the reflector edge. The'pyrophoric material 12 is held against the friction wheel by, thespring 13 and when the miner desires to light the lamp he ap-.

plies his finger to the tongue 29 and swings the lever inwardly toward the gas tube and then releases it. Swing of the lever causes the spring 23 to bewound up so that upon release it will rapidly rotate the lever and friction wheel in the opposite direction, the engagement of the sharp points'or serrations on the wheel with the pyrophoric material then causing the production of sparks which are directed in a stream toward and across the gas outlet of the tubeC, and issuing'gas is ignited. v

'IThearra-ngenientof the spring 23 within the friction wheel and its operating lever forms a very c'ompact'and neat structure. The'spring also forms'a flexible support for the friction wheel which'ofisets to a great degree the pressure of the spring 13 on the pyrophoric material. The spring 13 has a tendency to force the pyrophoric material into the teeth ofthe friction Wheel which introduces'resistance which will resist turning of the wheel. However, the yielding support of the wheel enables itto extract its teeth from the pyrophoric material to reduce the frictional engagement and to assure rapid rotation thereof by the spring 23when the lever is released after inward swing thereof.

Having described'my invention, I claim as follows: I

. 1. In spark producing mechanism of the class described, the combination of 'a'frame,

a "pin on said frame, a friction wheel having an opening for receiving said pin; a spring surrounding said pin within the wheel opening, s'aid spring being anchored to said Wheel said frame, a friction wheel -journaled on and tosaid frame, means for'r'otating said wheel against the force of said spring to wind said spring up, sparking material, means for holding said sparking material 111 range of said wheel,sa1d wound up sprmg when released causing rapid rotation of said wheel'in association with said sparking materialto produce sparks.

2. In spark produclng mechanism of the class described, the combination of a frame,

a friction wheel journaled on said frame, a sp1-ingconcentric with said wheel and disposed therein, said spring being'connected at one end with said frame and at its'other end with said wheel, means for-rotating said wheel to wind up'said spring, py'rophoric material on said frame, said wound up s )rin when released causin ra id rotation of said wheel in association with said pyrophoric "material to produce sparks.

3. In spark producing mechanism of the class described,the combination of a'supporting frame, a coiled spring supported'on said spring, said spring being connected at oneend with said wheel and'at its other end with said frame, means for rotating said wheel to wind up said sprlng, pyrophoric material supported on said frame, said spring when released after being wound up causlng rapid rotation of said wheel 1n association with said pyrophoric material to said spring when released causingra-pi'd rotation of said wheel to co-operate with said pyrophoric material to produce sparks.

5. In spark apparatus of the class described, the combination of a frame, a friction wheel, a coiled spring supported on said frame within said wheel and said wheel being rotatable around said spring, an'operating lever extending from said wheel,one end of'said'sp'ringbeing connectedwith-said lever and the other end thereof being con- 'neoted with said frame, p'yrophoric'material supported in said 'frameadj a'cent saidwheel,

swing of sa-idlever in onedirection causing said spring to be 'wound up, and release of the lever permitting the wound'up spring'to rapidly rotate said wheel against the pyrophoric material to producesparks.

6. In spark producing mechanism .of th'e class described, the combination of a frame, parallel arms extending from said frame, a pin between said arms, a coiled springsurrounding said pin between 'said arms,a*friction wheel between said arms having a cen-' tral opening for'receivin'gsaid springjon'e end of said spring being connected with said wheel and the other end being connected with -said frame, pyrophoric material'iin said frame, means for holding saidmater-ial associated with said wheel, said springbeing wound up when said wheel is rotated in'one direction and :when released causing :rfapid rotation of the wheel in theopposite direction'i'n co-operationwith the pyrophorich'iaterial to produce sparks. V

7. In spark producing mechanism of the class described, the combination-of a frame, parallel walls extending from said frame, .a pin extending between said walls, acoiled spring surrounding said pin, a frictionwvheel between said walls surrounding-said spring, a lever secured to and extending from said wheel, one endfofsaid spring being secured to said lever andthe'o'ther end being secured to said frame, pyrophoricmaterial insaid frame, means for holding said pyrophoric material in association with said *wheel. ro-

tation of said wheel in one direction by said lever causing said spring to be wound up and said spring operating upon release of the lever to rapidly rotate said wheel in the opposite direction in association with the pyrophoric material to produce sparks.

8. In spark producing mechanism of the class described, the combination of a frame, parallel arms extending from said frame, a pin extending between said arms, a coiled spring receiving said pin between said arms, a friction wheel between said arms having a central opening for receiving said spring, a lever secured to said wheel and extending therefrom, one end of said spring being secured to said frame and-the other end thereof being secured to said lever, said lever having a slot in which the spring end is disposed, pyrophoric material in said frame,

wheel by said lever in one directioncansing said spring to be wound up, said wound up spring when released causing rapid rotation ofsaid wheel in the opposite direction in engagement with the pyrophoric material to produce sparks.

In witness whereof, I hereunto subscribe my name this 26th day of August, A. D. 1921.

WILLIAM J. FRISBIE. 

